1. 5.2 Motion graphs Interpreting motion graphs Practical 5.1 Purpose To understand how to interpret displacement-time graph and velocity-time graph. Procedure 1.Connect a motion sensor, a datalogger interface and a computer as shown. computer motion sensor datalogger interface Video: Practical 5.1

2. 5.2 Motion graphs 2.Study the s-t graph on the right. Procedure 3.Try to move in front of the motion sensor in such a way that a plot of your motion will match the s-t graph. 134567981011 0 2 0.3 0.2 0.4 0.5 time / s displacement / m 0.1 1.2 1.1 1.0 0.9 0.8 0.7 0.6

3. 5.2 Motion graphs 4.Repeat the experiment with the v-t graph on the right. Procedure 1345679810 -0.05 0 2 0.15 0.10 0.20 time / s 0.05 -0.10 -0.15 -0.20 velocity / m s -1

4. 5.2 Motion graphs (b)the area under a v-t graph? The area under a v-t graph gives the displacement of the object. Discussion What is the physical meaning of (a)the slope of a s-t graph? The slope of a s-t graph gives the velocity of the object.